“That was so beautiful,” Bublé told her once she stopped singing. “That may not be your last time here. That was incredible. Too incredible if you ask me.”

Global News spoke with Allison Bellucci, Erin’s sister who recorded the interaction between the pair.

“Erin has always been a star to our family and friends. At Last has been her go-to since she was 12 years old,” Allison told Global News.

She continued: “The moment I thought Michael was going to ask an audience member to sing I started jumping up and down to get his attention because I knew she’d absolutely rock it. This is all so exciting and I’m so proud of her. Huge thanks to Michael for really making her dreams come true.”

The Bellucci sisters weren’t the only people to be invited up to sing with the Haven’t Met You Yet singer this week.

Michelle Johnstone, a director of marketing, joined Bublé on stage on Tuesday evening at his Washington, D.C. show.

The pair sang a duet of Bublé’s Everything.

She tweeted, “The most surreal thing happened last night. I sang in an arena in front of thousands of people… with @MichaelBuble! Incredible human being!
#michaelbuble #MBWorldTour #bucketlist #nevertoppingthisdatenight.”

Global News spoke to Johnstone about her time at the concert at the Capital One Arena on Feb. 19.

“My husband Alexander and I had planned to go see Bublé in DC to celebrate Valentine’s Day,” Johnstone shared. “We’ve enjoyed his music for years and even danced to Everything as our first dance at our wedding.”

“Alex and I have had a lot going on in our lives lately, but an hour before the show, we ultimately decided to go. We knew we desperately needed this for each other and for ourselves,” Johnstone said.

She said that “a couple songs in” the It’s a Beautiful Day singer asked the audience if anyone “had dreamed of performing for a large audience.”

“I have NO idea what compelled me to raise my hand so abruptly, but he locked eyes with me instantly. I’m assuming a semblance of a theatre major is still in me somewhere (I studied musical theatre in college, but haven’t really performed since then, over 10 years),” Johnstone shared.

She said that the Canadian singer asked her what song she would like to sing and she suggested his song, Everything.

“It felt very appropriate for the situation. As I walked up to the stage, the feeling of absolute dread set in and I completely forgot the words. Thankfully when it came time to sing it, my duet partner helped cover for me when I was at a loss,” Johnstone said.

“He is an exceptional performer, but more than that, a genuinely kind person.”